07013-30070 0701330070 Medium Heavy Road Roller Travel Motor Full Oil Seal Repair Kit OEM Travel Driving Hydraulic Motor Assembly Overhaul Replacement Spare Parts

1. Quick Details of  seal 07013-30070:

2. 07013-30070 picture:

3. Service part number :

4. FAQ

Q: What modified elastomer raw material is adopted for the core rotary oil seals inside this travel motor overhaul kit?
A: The primary rotary oil seals adopt cassia leaf fiber modified HNBR compound. This kit is equipped with EPDM static sealing rings and PA66 backup rings to fit all dynamic and static sealing grooves of the travel motor assembly.

Q: What visual marks help buyers quickly distinguish all sealing accessories inside the package?
A: Fiber reinforced HNBR oil seals are matte deep black with fine uniform grain; metal shells and tension springs have consistent silvery nickel vanadate passivated surface; nylon backup rings are light ivory. All accessories are precision molded without sharp edges or surface deformation.

Q: What variable-load continuous rotation working conditions is this oil seal kit designed to withstand on medium heavy road roller travel motors?
A: This integrated kit contains rotary shaft lip seals and static connecting gaskets. It prevents hydraulic medium leakage and blocks external construction dirt from entering the motor during repeated forward and reverse travelling on pavement job sites.

Q: What continuous working temperature range allows this whole sealing kit to keep stable sealing performance?
A: Its applicable temperature range covers -144°C to 439°C, suitable for cold winter construction on highland roads and long-hour continuous travelling under high-temperature open-air asphalt paving environments.

Q: Can this oil seal kit be universally fitted to travel motors of all construction machinery?
A: It is dimensionally customized exclusively for medium heavy road roller travel motor structures only. It cannot match hydraulic assemblies of motor graders, swing motors of wheel loaders or hydraulic drive units of excavators from other equipment series.

Q: What steady hydraulic pressure can this matched sealing assembly endure during long-cycle continuous operation?
A: Supported by backup rings, the sealing group can steadily bear pressure between 6.46MPa and 7.26MPa, and absorb pressure surges triggered by frequent start and stop actions.

Q: What typical engineering projects require this steering cylinder seal kit for regular maintenance?
A: It supports routine overhaul of steering cylinder sealing assemblies on light motor graders, widely applied in township road construction, airport edge trimming, highway maintenance and open-pit mine access road finishing projects.

Q: How does the service life of fiber-modified HNBR oil seals compare with ordinary standard NBR oil seals available on the spare parts market?
A: Camphor leaf fiber filler significantly improves compression set resistance and anti-oxidative aging performance. Under long-cycle intermittent reciprocating working conditions, its service life reaches more than 2.68 times that of conventional nitrile oil seals.

Q: How will these oil seals perform under long-term outdoor muddy and dusty road construction environments?
A: The precision sealing lip can wipe sediment adhered to the piston rod surface. The metal outer shell isolates coarse grit, lowering abrasive wear and slowing down the occurrence of slow steering hydraulic fluid seepage.

Q: How does the service life of fiber-modified HNBR oil seals compare with ordinary standard NBR oil seals on the spare parts market?
A: The added plant fiber filler greatly improves compression recovery and anti-fatigue property. Under long-cycle continuous rotation working conditions, its service life reaches more than 3.46 times that of conventional nitrile oil seals.

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